新型非对称电化学电容器的电极匹配研究

电化学（中英文） ›› 2004, Vol. 10 ›› Issue (2): 190-196.

新型非对称电化学电容器的电极匹配研究

苏岳锋,吴锋

北京理工大学化工与环境学院,北京理工大学化工与环境学院北京100081国家高技术绿色材料发展中心北京100081 ,北京100081国家高技术绿色材料发展中心北京100081

收稿日期:2004-05-28 修回日期:2004-05-28 出版日期:2004-05-28 发布日期:2004-05-28

The Matching Study of Electrodes in C/Ni(OH)_2 Hybrid Capacitor

SU Yue-feng~

(1,2),WU Feng~(*1,2) (1.School of Chemical Engineering & Environment, Beijing Institute of Technology,Beijing 100081,China, 2,Lab.of National Development Center of Hi-Tech Green Materials,Beijing 100081,China

Received:2004-05-28 Revised:2004-05-28 Published:2004-05-28 Online:2004-05-28

摘要/Abstract

摘要： 　活性炭负极容量的有效利用率是导致双电层电化学电容器和C/Ni(OH)2非对称电化学电容器容量性质差异的主要因素,并可将其作为非对称电化学电容器容量设计和测算的依据;本文引入Ni(OH)2正极有效活性物质概念,以正极有效活性物质的量匹配负极的设计容量,从而优化正、负极的容量匹配,改善非对称电化学电容器的容量和大电流性能.

关键词: 双电层电容器, 非对称电容器, 活性炭负极, Ni(OH)2正极

Abstract: The energy storage mechanisms of electrochemical double-layer capacitor (EDLC) and C/Ni(OH)_2 hybrid capacitor had been studied. The results proved that,the difference between the capacity of EDLC and C/Ni(OH)_2 hybrid capacitor was detemined by the effectiveness usage of the activated carbon negative electrode, which is a criterion to estimate or design the theoretic capacity of the C/Ni(OH)_2 hybrid capacitor.The electrochemical availability of activated matter in Ni(OH)_2 electrode was introduced,and the quantity of the activated matter in Ni(OH)_2 electrode should be compatible with the capacity of carbon electrode .When the capacities of Ni(OH)_2 electrode and activated carbon electrode were matched well,the capacity and high rate performance of the hybrid capacitor would be improved.

Key words: EDLC, Hybrid capacitor, Activated carbon negative electrode, Ni(OH)_2 electrode

中图分类号:

TM53

苏岳锋,吴锋. 新型非对称电化学电容器的电极匹配研究[J]. 电化学（中英文）, 2004, 10(2): 190-196.

SU Yue-feng~. The Matching Study of Electrodes in C/Ni(OH)_2 Hybrid Capacitor[J]. Journal of Electrochemistry, 2004, 10(2): 190-196.

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